K. Biagio, M. Baldini, L. Formenti, Aurora Luciani, L. Napolitano, I. Sciarra, J. Dolcini, S. Bartolacci, Thomas Valerio Simeoni, E. Prospero
Literature supports the correlation between worse indoor air quality, lower socio-economic status and disease, such as asthma, Extrinsic Allergic Alveolitis (EAA) and Carbon Monoxide Intoxication (COI). In order to determine the extent of the phenomenon in the Marche Region, hospitalization risk for asthma, EAA and CO intoxication was assessed in association with Particulate Matter 2.5 (PM2.5) air concentration and socio-economic Deprivation Index (DI). Hospital discharge records of residents of the Marche Region with diagnosis of asthma, EAA and COI were analysed between 20062013. We then identified DI value and average PM2.5 levels for each municipality, using atmospheric modelling systems. Association between these proxy indicators of indoor air quality and relative risk (Confidence Interval CI 90%) of hospitalization for the considered health outcomes was evaluated. Data analysis shows a higher number of hospitalizations for asthma with the increase of PM2.5 concentration quintiles and suggests a possible correlation between socio-economic deprivation and EAA and CO intoxication.
{"title":"PROXY EXPOSURE INDICATORS FOR INDOOR AIR POLLUTION, HEALTH IMPACT AND DEPRIVATION IN THE MARCHE REGION, ITALY","authors":"K. Biagio, M. Baldini, L. Formenti, Aurora Luciani, L. Napolitano, I. Sciarra, J. Dolcini, S. Bartolacci, Thomas Valerio Simeoni, E. Prospero","doi":"10.30638/EEMJ.2020.164","DOIUrl":"https://doi.org/10.30638/EEMJ.2020.164","url":null,"abstract":"Literature supports the correlation between worse indoor air quality, lower socio-economic status and disease, such as asthma, Extrinsic Allergic Alveolitis (EAA) and Carbon Monoxide Intoxication (COI). In order to determine the extent of the phenomenon in the Marche Region, hospitalization risk for asthma, EAA and CO intoxication was assessed in association with Particulate Matter 2.5 (PM2.5) air concentration and socio-economic Deprivation Index (DI). Hospital discharge records of residents of the Marche Region with diagnosis of asthma, EAA and COI were analysed between 20062013. We then identified DI value and average PM2.5 levels for each municipality, using atmospheric modelling systems. Association between these proxy indicators of indoor air quality and relative risk (Confidence Interval CI 90%) of hospitalization for the considered health outcomes was evaluated. Data analysis shows a higher number of hospitalizations for asthma with the increase of PM2.5 concentration quintiles and suggests a possible correlation between socio-economic deprivation and EAA and CO intoxication.","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47139340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. H. Quyet, L. Khiem, T. T. T. My, N. T. My, M. Frontasieva, I. Zinicovscaia, N. A. Sơn, T. Thanh, L. D. Nam, K. T. Hong, N. Mai, T. D. Trung, D. V. Thang, N. Hang
Atmospheric deposition of chemical elements in the Hanoi region has been investigated in this study based on moss biomonitoring. Twenty-seven Barbula indica moss samples were collected from the end of 2016 to the beginning of 2017, and the concentrations of 33 chemical elements in the samples were determined by instrumental neutron activation analysis. The results show that Hanoi s air is highly polluted with Zn, Ba and Ta, and slightly polluted with Al, Cl, Sc, Ti, V, Cr, Mn, Fe, Ni, Co, As, Cd, Sb, La, Ce, Sm, Gd, Tb, Yb, Hf, Th and U. A determination of the possible pollution sources has been made for the analyzed elements; namely: coal and oil combustion are the main sources of V, Ni, Co and As; vehicle exhaust and non-exhaust sources, as well as industrial emissions, are the main sources of Mn, Co, Cd and Ba; construction dust is the source of Ca, Mg and Sb; various industries are the sources of Cr and Ni; the dust from cement kilns and ash from biomass burning is responsible for K and Cl; two-stroke motor vehicles, galvanizing factories and tire wear are the sources of Zn; and Br may be emitted from burning wastes.
{"title":"BIOMONITORING OF CHEMICAL ELEMENT AIR POLLUTION IN HANOI USING Barbula indica MOSS","authors":"N. H. Quyet, L. Khiem, T. T. T. My, N. T. My, M. Frontasieva, I. Zinicovscaia, N. A. Sơn, T. Thanh, L. D. Nam, K. T. Hong, N. Mai, T. D. Trung, D. V. Thang, N. Hang","doi":"10.30638/eemj.2021.074","DOIUrl":"https://doi.org/10.30638/eemj.2021.074","url":null,"abstract":"Atmospheric deposition of chemical elements in the Hanoi region has been investigated in this study based on moss biomonitoring. Twenty-seven Barbula indica moss samples were collected from the end of 2016 to the beginning of 2017, and the concentrations of 33 chemical elements in the samples were determined by instrumental neutron activation analysis. The results show that Hanoi s air is highly polluted with Zn, Ba and Ta, and slightly polluted with Al, Cl, Sc, Ti, V, Cr, Mn, Fe, Ni, Co, As, Cd, Sb, La, Ce, Sm, Gd, Tb, Yb, Hf, Th and U. A determination of the possible pollution sources has been made for the analyzed elements; namely: coal and oil combustion are the main sources of V, Ni, Co and As; vehicle exhaust and non-exhaust sources, as well as industrial emissions, are the main sources of Mn, Co, Cd and Ba; construction dust is the source of Ca, Mg and Sb; various industries are the sources of Cr and Ni; the dust from cement kilns and ash from biomass burning is responsible for K and Cl; two-stroke motor vehicles, galvanizing factories and tire wear are the sources of Zn; and Br may be emitted from burning wastes.","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43278230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. M. Kamyab, S. Modabberi, Craig Williams, Alireza Badiei
Pure sodalites were successfully synthesized from kaolinite taking the advantages of alkaline fusion technique. The synthesized sodalites were then characterized via XRD, SEM/EDX, and FTIR methods. The efficiency of these sodalites for treatment of Cu2+, Zn2+ and Ni2+ ions in aqueous solutions was also scrutinized through batch adsorption experiments. Subsequently, the concentrations of Cu2+, Zn2+, and Ni2+ ions in final leachates were detected by ICP-OES analysis. Furthermore, the results proved that adsorption data fitted very well to Freundlich isotherm model assuming that the metal ions removal can be applied to multilayer adsorption. Moreover, the kinetics of the adsorption followed the pseudo-second-order model suggesting that the rate of adsorption process may be controlled by the chemical sorption. In brief, the synthesized sodalites excellent performance for heavy metal ions removal from aqueous solutions can shed light on their remarkable potential in purification applications. Additionally, considering high cost of the natural sodalite, synthesis of sodalites with homogeneous porous structure that can be used as great adsorbents would be profitable for environmental purposes.
{"title":"PURE SODALITE SYNTHESIS, CHARACTERIZATION AND APPLICATION FOR HEAVY METAL IONS REMOVAL FROM AQUEOUS SOLUTIONS","authors":"S. M. Kamyab, S. Modabberi, Craig Williams, Alireza Badiei","doi":"10.30638/eemj.2021.066","DOIUrl":"https://doi.org/10.30638/eemj.2021.066","url":null,"abstract":"Pure sodalites were successfully synthesized from kaolinite taking the advantages of alkaline fusion technique. The synthesized sodalites were then characterized via XRD, SEM/EDX, and FTIR methods. The efficiency of these sodalites for treatment of Cu2+, Zn2+ and Ni2+ ions in aqueous solutions was also scrutinized through batch adsorption experiments. Subsequently, the concentrations of Cu2+, Zn2+, and Ni2+ ions in final leachates were detected by ICP-OES analysis. Furthermore, the results proved that adsorption data fitted very well to Freundlich isotherm model assuming that the metal ions removal can be applied to multilayer adsorption. Moreover, the kinetics of the adsorption followed the pseudo-second-order model suggesting that the rate of adsorption process may be controlled by the chemical sorption. In brief, the synthesized sodalites excellent performance for heavy metal ions removal from aqueous solutions can shed light on their remarkable potential in purification applications. Additionally, considering high cost of the natural sodalite, synthesis of sodalites with homogeneous porous structure that can be used as great adsorbents would be profitable for environmental purposes.","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41447568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This article presents the results of laboratory tests of water evaporation for varying air velocities over the water surface at different water wave heights. Measurements of water evaporation were conducted using the experimental setup, which consists of a wind tunnel covering a bottom-heated water tank. The investigations were carried out for water temperature higher than the intake air temperature in the range of variable air velocity from 0.40 to 0.94 m/s. The measurements were carried out for four series with heights of spatter-free wave 0, 1.5, 3.0 and 5.0 mm, respectively. The conditions were maintained in such a way that the variations in the partial pressure over the water surface were kept to a minimum. The evaporation coefficient was defined, as the water mass transfer coefficient referred to the steady differential of water vapour partial pressures at air and water temperatures. The novelty consists in finding a linear correlation between the evaporation coefficient and the air velocity over the disturbed water surface. However, an increase in the evaporation coefficient is directly proportional to the height of the water wave. By comparing the wave height to the coefficient of pool occupancy, a new formula for predicting evaporation is given for indoor pools.
{"title":"EXPERIMENTAL INVESTIGATION OF FORCED EVAPORATION COEFFICIENT FROM THE DISTURBED SURFACE OF HEATED WATER","authors":"D. Obracaj, M. Korzec, Klaudia Zwolińska","doi":"10.30638/EEMJ.2021.027","DOIUrl":"https://doi.org/10.30638/EEMJ.2021.027","url":null,"abstract":"This article presents the results of laboratory tests of water evaporation for varying air velocities over the water surface at different water wave heights. Measurements of water evaporation were conducted using the experimental setup, which consists of a wind tunnel covering a bottom-heated water tank. The investigations were carried out for water temperature higher than the intake air temperature in the range of variable air velocity from 0.40 to 0.94 m/s. The measurements were carried out for four series with heights of spatter-free wave 0, 1.5, 3.0 and 5.0 mm, respectively. The conditions were maintained in such a way that the variations in the partial pressure over the water surface were kept to a minimum. The evaporation coefficient was defined, as the water mass transfer coefficient referred to the steady differential of water vapour partial pressures at air and water temperatures. The novelty consists in finding a linear correlation between the evaporation coefficient and the air velocity over the disturbed water surface. However, an increase in the evaporation coefficient is directly proportional to the height of the water wave. By comparing the wave height to the coefficient of pool occupancy, a new formula for predicting evaporation is given for indoor pools.","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"20 1","pages":"267-282"},"PeriodicalIF":1.1,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41430121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Elena Matei, Oana-Ramona Ilovan, Christiana Brigitte Sandu, Liliana Dumitrache, Marinela Istrate, I. Jucu, A. Gavrilidis
This study aimed to explore the impact of the COVID-19 pandemic crisis on the society and environment in Romania. It is based on the results of a survey conducted in May 2020 to emphasise the perception and reactions of the higher educated population to unprecedented measures taken by public and health authorities during the lockdown. The analysis of the population perception addressed four significant aspects: the awareness of the risks of infection; the adaptation to pandemic issues; behavioural changes due to the disease outbreak; and the prioritisation of social and environmental measures, aimed at minimising the spread of the virus and diffusion of COVID-19 disease it causes. A reliable cross-sectional online questionnaire was performed on a final sample of 719 Romanian adults aged 18-75 years. Both quantitative and qualitative methods were applied, using SPSS analysis and procedure, and respectively Application Programming Interface (API). Findings pointed out that in Romania, the higher educated population considered the risk of infection as being moderate. Although, they initially questioned the restrictions, they subsequently followed social distancing measures, initiated resilience actions by adopting new sanitary habits, healthy behaviours and reconsidering the importance of an inclusive living environment. In their views, the management of the crisis at the national and local level is satisfactory, thus outlining the directions for actions and placing health and the environment along with social issues as top priorities and needs for the Romanian communities.
{"title":"EARLY COVID-19 PANDEMIC IMPACTS ON SOCIETY AND ENVIRONMENT IN ROMANIA. PERCEPTION AMONG POPULATION WITH HIGHER EDUCATION","authors":"Elena Matei, Oana-Ramona Ilovan, Christiana Brigitte Sandu, Liliana Dumitrache, Marinela Istrate, I. Jucu, A. Gavrilidis","doi":"10.30638/EEMJ.2021.032","DOIUrl":"https://doi.org/10.30638/EEMJ.2021.032","url":null,"abstract":"This study aimed to explore the impact of the COVID-19 pandemic crisis on the society and environment in Romania. It is based on the results of a survey conducted in May 2020 to emphasise the perception and reactions of the higher educated population to unprecedented measures taken by public and health authorities during the lockdown. The analysis of the population perception addressed four significant aspects: the awareness of the risks of infection; the adaptation to pandemic issues; behavioural changes due to the disease outbreak; and the prioritisation of social and environmental measures, aimed at minimising the spread of the virus and diffusion of COVID-19 disease it causes. A reliable cross-sectional online questionnaire was performed on a final sample of 719 Romanian adults aged 18-75 years. Both quantitative and qualitative methods were applied, using SPSS analysis and procedure, and respectively Application Programming Interface (API). Findings pointed out that in Romania, the higher educated population considered the risk of infection as being moderate. Although, they initially questioned the restrictions, they subsequently followed social distancing measures, initiated resilience actions by adopting new sanitary habits, healthy behaviours and reconsidering the importance of an inclusive living environment. In their views, the management of the crisis at the national and local level is satisfactory, thus outlining the directions for actions and placing health and the environment along with social issues as top priorities and needs for the Romanian communities.","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"20 1","pages":"319-330"},"PeriodicalIF":1.1,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44725937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Mahmoudi, S. A. Shirazi, S. M. A. Jahanshahi, F. Firoozi, N. Mazhar
The present study aimed at investigating the long-term degradation of vegetation in Baluchistan in southwest Asia. To achieve the objective NDVI products of the MODIS sensor on Terra Satellite (MOD13A3) with spatial resolution of 1 1 km for a period of 16 years (2000-2015) were used. After obtaining images from the NASA land processes distributed active archive center, all images downloaded for the study area were mosaicked and referenced by Universal Transverse Mercator Project System and by using the nearest-neighbour re-sampling method. Then, on a pixel-based scale, the trend of long-term changes in vegetation was studied using the seasonal Mann-Kendall non-parametric test. The results show that 1.23% of the total area under study had a long-term decreasing trend in vegetation. Out of this 1.23%, 0.33% were significant at a probability level of a = 0.01, 0.24% was significant at a probability level of a = 0.05, and 0.12% were significant at a probability level of a = 0.1. The decreasing trend of 0.54% of them was not confirmed at any of the significant levels. Among the various types of vegetation, shrublands and croplands had the most significant long-term decreasing changes, which could be dangerous signs of ecotones degradation as well as weakening the sustainable rural livelihoods in this land.
{"title":"DETECTION OF LONG-TERM VEGETATION DEGRADATION IN BALUCHISTAN IN SOUTHWEST ASIA USING NDVI PRODUCTS OF THE MODIS SENSOR OF TERRA SATELLITE","authors":"P. Mahmoudi, S. A. Shirazi, S. M. A. Jahanshahi, F. Firoozi, N. Mazhar","doi":"10.30638/EEMJ.2021.029","DOIUrl":"https://doi.org/10.30638/EEMJ.2021.029","url":null,"abstract":"The present study aimed at investigating the long-term degradation of vegetation in Baluchistan in southwest Asia. To achieve the objective NDVI products of the MODIS sensor on Terra Satellite (MOD13A3) with spatial resolution of 1 1 km for a period of 16 years (2000-2015) were used. After obtaining images from the NASA land processes distributed active archive center, all images downloaded for the study area were mosaicked and referenced by Universal Transverse Mercator Project System and by using the nearest-neighbour re-sampling method. Then, on a pixel-based scale, the trend of long-term changes in vegetation was studied using the seasonal Mann-Kendall non-parametric test. The results show that 1.23% of the total area under study had a long-term decreasing trend in vegetation. Out of this 1.23%, 0.33% were significant at a probability level of a = 0.01, 0.24% was significant at a probability level of a = 0.05, and 0.12% were significant at a probability level of a = 0.1. The decreasing trend of 0.54% of them was not confirmed at any of the significant levels. Among the various types of vegetation, shrublands and croplands had the most significant long-term decreasing changes, which could be dangerous signs of ecotones degradation as well as weakening the sustainable rural livelihoods in this land.","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"20 1","pages":"291-300"},"PeriodicalIF":1.1,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42391415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Observation of surface water is a very important for studying hydrological processes and last advances in satellite-based optical remote sensors have promoted the field of sensing surface water of a certain area or from a catchment area. This paper has considered analysing data from satellite image and geographical information system (GIS) for a catchment area. Banat hydrographical area is situated in the western part and south-western part of Romania and Barzava River basin drains a relatively small area in Banat Hydrographical Area. GIS techniques were used for extract data NDWI, MNDWI, AWEI indexes from in Landsat-8 satellite in images to evaluate their performances for the extraction of surface water. This paper shows the monitoring of Barzava river basin based on the indices resulting from the processing of satellite images. The objective of this research was to extract the surface water bodies from the hydrographic basin of river Barzava. Then, these data are utilized for purpose finding correlation and regression equations between the reflectance of the satellite image and the water parameters. NDWI being an indicator of plant water stress, it is observed that for 2018 compared to 2019 the basin of the Barzava River was affected by the drought.
{"title":"ASSESMENT OF WATER RESOURCES USING LANDSAT SATELLITE IMAGERY","authors":"C. Bădăluță-Minda, M. Herbei","doi":"10.30638/EEMJ.2021.030","DOIUrl":"https://doi.org/10.30638/EEMJ.2021.030","url":null,"abstract":"Observation of surface water is a very important for studying hydrological processes and last advances in satellite-based optical remote sensors have promoted the field of sensing surface water of a certain area or from a catchment area. This paper has considered analysing data from satellite image and geographical information system (GIS) for a catchment area. Banat hydrographical area is situated in the western part and south-western part of Romania and Barzava River basin drains a relatively small area in Banat Hydrographical Area. GIS techniques were used for extract data NDWI, MNDWI, AWEI indexes from in Landsat-8 satellite in images to evaluate their performances for the extraction of surface water. This paper shows the monitoring of Barzava river basin based on the indices resulting from the processing of satellite images. The objective of this research was to extract the surface water bodies from the hydrographic basin of river Barzava. Then, these data are utilized for purpose finding correlation and regression equations between the reflectance of the satellite image and the water parameters. NDWI being an indicator of plant water stress, it is observed that for 2018 compared to 2019 the basin of the Barzava River was affected by the drought.","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45230743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fangli Chen, Yuelei Shen, Si-Yuan Liu, Yiduo Yang, Laili Wang
The textile industry is one of the most water intensive and polluting industries. China is the world s largest producer of textile products. For the sustainable development of China s textile industry, the environmental impacts caused by its water consumption and wastewater discharge must be identified. In this paper, we analysed the water footprint of China s textile industry based on the water footprint framework proposed in the ISO 14046. The results showed that both water scarcity footprint and water eutrophication footprint increased from 1996 to 2015, despite the fluctuation periods. Water ecotoxicity footprint decreased during the selected researched years. Among the three sub-sectors of China s textile industry, the water footprints of the manufacture of textiles sector were larger than those of manufacture of textile wearing apparel, foot-ware, and caps sector and manufacture of chemical fibres sector. The water footprint intensity of China s textile industry has decreased through the efforts of government administrative control measures and producers actions on freshwater saving and wastewater treatment.
{"title":"WATER FOOTPRINT OF TEXTILE INDUSTRY: A CASE STUDY OF CHINA","authors":"Fangli Chen, Yuelei Shen, Si-Yuan Liu, Yiduo Yang, Laili Wang","doi":"10.30638/EEMJ.2021.024","DOIUrl":"https://doi.org/10.30638/EEMJ.2021.024","url":null,"abstract":"The textile industry is one of the most water intensive and polluting industries. China is the world s largest producer of textile products. For the sustainable development of China s textile industry, the environmental impacts caused by its water consumption and wastewater discharge must be identified. In this paper, we analysed the water footprint of China s textile industry based on the water footprint framework proposed in the ISO 14046. The results showed that both water scarcity footprint and water eutrophication footprint increased from 1996 to 2015, despite the fluctuation periods. Water ecotoxicity footprint decreased during the selected researched years. Among the three sub-sectors of China s textile industry, the water footprints of the manufacture of textiles sector were larger than those of manufacture of textile wearing apparel, foot-ware, and caps sector and manufacture of chemical fibres sector. The water footprint intensity of China s textile industry has decreased through the efforts of government administrative control measures and producers actions on freshwater saving and wastewater treatment.","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"20 1","pages":"237-245"},"PeriodicalIF":1.1,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44711778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biochar is attracting attention as a soil amendment and organic/inorganic adsorbent for water purification. Proper use of biochar in such cases requires understanding of the mechanisms of nutrient adsorption and desorption on biochar. In this study, slow pyrolyzed wood biochar s were prepared at temperatures 400 and 600 C with retention time of 60 and 120 minutes to investigate their phosphate and ammonium adsorption capacities. The effects of pyrolysis process conditions and biochar physicochemical properties on potential adsorption capacity were evaluated. Results of adsorption kinetics showed that both pseudo-first-order and pseudosecond-order models could well predict the adsorption kinetics of phosphate and ammonium indicating that the chemical adsorption was one of the main mechanisms of phosphate and ammonium absorption. Langmuir-Freundlich isotherm was the best-fit model for ammonium adsorption which means the occurrence of chemical adsorption on heterogeneous surface whilst Langmuir isotherm agreed well with the phosphate adsorption. For different biochar s, ammonium adsorption capacity ranged from about 0.34 to 5.3 mg/g and phosphate adsorption capacity ranged from about 0.6 to 42.2 mg/g. Phosphate adsorption capacity improved with increasing temperature and retention time of pyrolysis process. However, higher ammonium adsorption which was observed in lower pyrolysis temperature and residence time can be attributed to more oxygen-containing functional groups. Both phosphate and ammonium adsorptions-desorption by biochar are more strongly related to solution pH, and maximum adsorption capacities were observed at pH of 7 and 3 for ammonium and phosphate, respectively.
{"title":"EVALUATION OF PHOSPHATE AND AMMONIUM ADSORPTIONDESORPTION OF SLOW PYROLYZED WOOD BIOCHAR","authors":"M. Rezaee, S. Gitipour, M. Sarrafzadeh","doi":"10.30638/EEMJ.2021.022","DOIUrl":"https://doi.org/10.30638/EEMJ.2021.022","url":null,"abstract":"Biochar is attracting attention as a soil amendment and organic/inorganic adsorbent for water purification. Proper use of biochar in such cases requires understanding of the mechanisms of nutrient adsorption and desorption on biochar. In this study, slow pyrolyzed wood biochar s were prepared at temperatures 400 and 600 C with retention time of 60 and 120 minutes to investigate their phosphate and ammonium adsorption capacities. The effects of pyrolysis process conditions and biochar physicochemical properties on potential adsorption capacity were evaluated. Results of adsorption kinetics showed that both pseudo-first-order and pseudosecond-order models could well predict the adsorption kinetics of phosphate and ammonium indicating that the chemical adsorption was one of the main mechanisms of phosphate and ammonium absorption. Langmuir-Freundlich isotherm was the best-fit model for ammonium adsorption which means the occurrence of chemical adsorption on heterogeneous surface whilst Langmuir isotherm agreed well with the phosphate adsorption. For different biochar s, ammonium adsorption capacity ranged from about 0.34 to 5.3 mg/g and phosphate adsorption capacity ranged from about 0.6 to 42.2 mg/g. Phosphate adsorption capacity improved with increasing temperature and retention time of pyrolysis process. However, higher ammonium adsorption which was observed in lower pyrolysis temperature and residence time can be attributed to more oxygen-containing functional groups. Both phosphate and ammonium adsorptions-desorption by biochar are more strongly related to solution pH, and maximum adsorption capacities were observed at pH of 7 and 3 for ammonium and phosphate, respectively.","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"20 1","pages":"217-227"},"PeriodicalIF":1.1,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48311481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Varadarajan, S. Muthupandiyan, Jeyahamsini Manika Kannan, S. Thangaraju, Gajendran Thozhan
The use of Neonicotinoid was generally basic in every cultivation land of the world. Neonicotinoid incorporates seven distinct sorts of insecticides. This research involved in finding the excess presence of imidacloprid in various regions of soil and surface water at Ariyalur and Nammakal areas. The samples required for finding Neonicotinoid in the soil and surface water at the inside and outside of the selected sugarcane field were collected. The soil samples were collected 15 cm below from the upper soil profile and water samples were gathered from the surface water. The testing of Neonicotinoid includes toxic substance limit, carbon, NPK content values in the various zones of soil, water samples were examined by using the lab equipment. To reduce the serious impact of excess toxic neonicotinoid, nitrogen, the carbon content in the soil, water, the reasonable strategies were embraced. The concentration of the above lethal breaking points was controlled and corrupted by the utilization of Enterobacter asburiae. This research exhibits the hazard appraisal, beneficial proportions of Neonicotinoid in the soil, the role of bacterial degradation.
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